What are we about?



We are passionate about showcasing the business sector as a leader in providing social environmental and economic wellbeing. We are equally passionate about showing our clients how they can benefit from investment in sustainable and responsible business practices.



We believe in business as a force for good. The business sector has the ability and a responsibility to give back that goes far beyond economic value. It can and should be a protector of our natural environment and a catalyst for change in the system of social provisions in our community.



We strive to offer more intelligent data capture for our clients. To show them the rich and useful data hidden within their business and prove the difference this can make to strategic decision making and ultimately, their future as a sustainable company.

Vision and Values

Our Vision is to use data to help change the business world, for good.


Building trusted relationships with our clients and helping them build trust with their customers through transparency.


Transforming our clients’ business through intelligent data and revolutionising the sustainability landscape.


Working together with our clients and trusted partners to change their world, and ours, for good.

Our Impact

At SustainIQ, we are passionate about making a difference in the world. We believe the success of our business is driven, not just by profit, but by the positive impact we can have. We are therefore committed to giving back.

The UN Sustainable Development Goals

The Sustainable Development Goals are a call for action by all countries – poor, rich and middle-income – to promote prosperity while protecting the planet. They recognize that ending poverty must go hand-in-hand with strategies that build economic growth and address a range of social needs including education, health, social protection, and job opportunities, while tackling climate change and environmental protection.

The Cause

UN Sustainable Development Goal 7 – Affordable & Clean Energy

Most of us in the developed world take access to energy for granted. Light bulbs turn on at the flick of a switch; we have instant and constant access to power for our many devices and we heat and cool our homes without a second thought.

It's a very different story for the 789 million people globally who still can't access electricity. Many rely on kerosene lamps that release harmful emissions, provide a poor source of light, are expensive to run and are extremely hazardous.

Energy poverty is also a climate issue and therefore solar lights offer a real and sustainable solution to help combat energy poverty now.

Our Commitment

With every new subscription to SustainIQ, we provide solar lighting that helps 334 people, saves families £9,875, gives children 62.4k hours of extra study time, decreases CO2 emissions by 65.8 tonnes and allows 162 people in a developing country to live healthier lives. We do this in partnership with Solar Aid.

Solar lighting is safe, clean and affordable and will open up opportunities that most of us take for granted, but of which those kept in the dark can only dream. It will allow families to earn, learn and feel safe after dark; provide opportunities for income, a livelihood and independence - all using the power of the sun.

Working with our customers, we can provide a family with their first step on the energy ladder and help contribute to SDG 7.

Meet the Co-Founders

SustainIQ was formed by its two co-founders Liam McEvoy and Maria Diffley. The pair met at an industry award ceremony in 2017 and over a glass or two of wine, got chatting about the many challenges sustainability presents to businesses who are looking to operate in a more sustainable and responsible manner. Many more conversations followed, and they soon realised there was a real need to create a solution that would help organisations use their sustainability performance to drive business improvement. And so, SustainIQ was born. An online platform that allows organisations to harness their business intelligence that previously was not being considered in the strategic decision-making process.

Both Maria and Liam have strong backgrounds working in sustainability. Maria has worked in both the public and voluntary sectors and holds an MSc in Sustainability & CSR. Liam has worked with construction and manufacturing clients for over 15 years developing sustainability strategies for their corporate clients. He holds a BSc (Hons) Environmental Management.

Meet The Core Team

Liam McEvoy


Liam has worked in the field of sustainability for nearly twenty years across the public, private and voluntary sectors. He has a strong background in management systems and compliance and has developed and implemented sustainability strategies for a number of leading UK construction firms. Liam holds a BSc (Hons) in Environmental Management.

He believes that SustainIQ has a mission to help organisations become more data-driven by uncovering the untapped intelligence that sits waiting to be found within any company. The software helps to harness business intelligence from sustainability performance to inform business strategy, helping companies become more transparent and encouraging better business.


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Maria Diffley


Having worked in the sustainability space for well over a decade, both Maria and her business partner Liam recognised the need for a solution which helped companies to navigate the complexities involved in measuring, monitoring and reporting on their Sustainability and ESG investments. In response, they created an agile, integrated, real-time reporting tool which calculates a company's impacts on the environment, local communities and their people, through their products and supply chain. This data provides organisations with business intelligence that wasn’t previously being considered in strategic decision-making.

Prior to the establishment of SustainIQ, Maria worked with Business in the Community, providing support and advice on CR to the private, public and voluntary sectors. She also holds an MSc in Sustainability and CSR.

She is passionate about harnessing the power of business to positively impact the world and has advocated for long-term partnerships between business and community development organisations since her teens. She has helped with the capacity-building of many charitable and social enterprise organisations both locally in Northern Ireland and in the Developing World.


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Sarah Baird

Customer Success Manager

Sarah is our latest newbie, having joined the team in October 2021. Her background is in Marketing and Business Development, working with a wide range of both private and public sector organisations across the UK and Ireland, including CSR membership organisation Business in the Community.


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Dr David Stoops

Senior Software Lead

David joined the team in 2021, bringing a wealth of software experience from different sectors with him and he's transformed our world, for good!


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Simon Connelly

Full Stack Software Engineer

Simon joined the team in July 2021. He's a graduate of Ulster University with a BEng (Hons) in Electronic and Software Engineering and a LOT of guitars if his Teams background is anything to go by!


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Work With Us

SustainIQ is a young, dynamic company that truly wants to change the world, and we want like-minded people to join our team as we grow.

If you share our passion for showcasing how business can be a force for good, unearthing vital intelligence to help companies in their strategic decision-making and helping them focus on the right things in their sustainability journey, we’d like to hear from you.

If you don’t see a suitable vacancy listed below, email hello@sustainiq.co.uk with your CV and an outline of why changing the world matters to you and we’ll keep you in mind as our quest for (sustainable) world domination continues!

We’ll change your world, for good.

You accept that by forwarding your details you have agreed to SustainIQ processing personal data concerning you for legitimate business interests. SustainIQ recognises you have the right to opt out and remove your personal data at any time. To opt out, please contact hello@sustainiq.co.uk.